I renamed IO.h in my visual studio project, and then clicked on the .cpp file where it included it. And went open, expecting it not to be there, and instead took me to some file io file. So yeah I can see the possibility of some conflict there

** * This file has no copyright assigned and is placed in the Public Domain. * This file is part of the mingw-w64 runtime package. * No warranty is given; refer to the file DISCLAIMER.PD within this package. */#ifndef _IO_H_#define _IO_H_